A rabbit fan from Australia sent me this photo by Steven Jaquiery and a link to an article about a Chihuahua and rabbit who are best friends in New Zealand. This pair are almost the same size and according to the report they enjoy playing and are inseparable buddies. Read article at this Link. Rabbits can bond with dogs. However, it depends upon the dog and rabbit personalities. Any introduction and time together should be a well supervised. For more information on bonding dogs with rabbits see this article at the House Rabbit Society website: When Fido Met Thumper.